Improvement in stoves



J. EASTER'LY.

Stove Door and Window.

No. 34.548. Patented Feb. 25, 1862.

N. PETERi Phnlauthugnphar. washington. D. C,

UNITED STATES PATENT OFFICE.

JAMES EASTERLY, OF ALBANY, NEW YORK, ASSIGNOR TO HIMSELF AND DENNIS G. LITTLEFIELD, OF SAME PLACE. i

IMPROVEMENT IN STOVEAS.

Specification forming part of Letters Patent No. 34,548, dated February 25, 1862.

T0 a/ZZ whom it may concern.'

Be it known that I, JAMES EASTERLY, of the city of Albany, in the county of Albany and State of New York, have invented a new and Improved Mode of Constructing Stove Doors and Windows; and I do hereby declare that the following is a full and. exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

In the drawings, Figure l represents apiece of metallic gauze A, to be placed in an opening in the sides of a stove or in a stove-door. Fig. 2 represents a like piece of gauze joined to a sheet of mica B, of the same size as the gauze, the mica beingindicated in blue color, and with one of the surfaces of each in close contact. Fig. 3 is the same as Fig. 2, with the exception that the gauze and mica are a space apart, the body of the former being so formed in relation to its edges that when the two are brought together theedges of the gauze will only come in contact with the mica. Fig. 4 shows the gauze and mica, as represented in Figs. 2 and 3, secured in place in a stove-door, said figure showing an inside elevation of the door. Fig. 5 is a Vertical section of Fig. 4 in the line a: x of the latter figure, said line passing through the gauze and mica placed in close contact, as indicated in Fig. 2. Fig. 6 is a horizontal section of Fig. 4 in line and shows the mica and gauze both in close contact and a space apart,

as indicated in Figs. 2 and 3.

The pieces of gauze and mica being laid together in either of the desired conditions, as represented by Figs. 2 and 3, are secured in place to the main portion O of the stovedoor by means of aremovable frame D, (seen in section in Fig. 5,) said frame having lugs cl, which project through and rest upon the bottom of the main portion C, and also having a thumb-button E to engage with a circular inclined projection c on the inside of main portion O, as shown in Figs. 4 and 5, the mica and gauze being placed between said frame and main portion and filling up or occupying an opening left in said frame and main portion of the stove-door.

Mica as heretofore used for stove doors and windows unprotected by metallic gauze has beenfsubject to objection from the discoloration of its inner surface by contact with smoke and a deposit of soot, which if wiped off still leaves a stain sufficient to impede the transmission of the light of the lire; also, bythe accumulation of soot and ashes upon its interior surface the mica sheet soon loses its power to repel heat by reflection, whereupon the heat is absorbed sufficient to cause its lamina to separate, afterwhich the sheet soon becomes worthless. These objections I have overcome by a combination of metallic gauze with the mica, as above described, the action of the gauze being such as to protect the mica from contact with the smoke, flame, and ashes, neither of which, under my application of the gauze, will pass through its interstices, thus allowing the mica to retain all its original luster. I would here state that after the gauze has once become blackened by contact with the smoke, as indicated in Fig. 2, the presence of the blackened gauze can hardly be perceived in case a blazing fire is within the stove, the door being closed. In fact the gauze under such circumstances disappears and apparently in'no wise interferes with the transmission of the light from the interior of .the stove.

VIn place of the gauze a thin metallic plate, very finely and very numerously perforated, or a gauze made of asbestus, might be substituted to good purpose; but I prefer the gauze made of brass, white-metal, or of other suitable metallic substance.

In Fig. 2 I have shown thegauze and mica in close contact; but they may be separated a space apart, as in Fig. 3, with small perforations through the mica, as at f f f f, Figs. 4 and 6, in which case a gentle draft of air through the holes f will repel any tendency of the smoke and ashes to penetrate into the space between the gauze and mica, as well as prevent the clogging up of the interstices of the gauze.

The gauze, as indicated in Figs. 4, 5, and 6, is interposed between the mica and the fire in the stove.

I have only described my invention as applied to a stove-door, but it is evident that the same may be applied to any other suitable part of a stove.

Having thus described my said invention, Witness my hand and seal inthe matter of what I claim as new, and desire to secure by my application for a patent for improvement ,i Letters Patent of the United States, is y in doors and windows of stoves, 85o., this 23d A Window or door for stoves, furnaces, and day of January, A. D. 1862. every eharaoter'of heater combining the prop- JAMES EASTERLY. [L. 8.] erties of metallic gauze and of mica or other Witnesses: transparent material, for the purpose speo- THOMAS HASTINGS, ed. v ANDREW KEEFE. 

